133666113 has 8 divisors (see below), whose sum is σ = 203681728. Its totient is φ = 76380624.

The previous prime is 133666081. The next prime is 133666129. The reversal of 133666113 is 311666331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 133666113 - 2⁵ = 133666081 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (133666213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3182506 + ... + 3182547.

It is an arithmetic number, because the mean of its divisors is an integer number (25460216).

Almost surely, 2^133666113 is an apocalyptic number.

It is an amenable number.

133666113 is a deficient number, since it is larger than the sum of its proper divisors (70015615).

133666113 is an equidigital number, since it uses as much as digits as its factorization.

133666113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6365063.

The product of its digits is 5832, while the sum is 30.

The square root of 133666113 is about 11561.4061861004. The cubic root of 133666113 is about 511.2976221523.

The spelling of 133666113 in words is "one hundred thirty-three million, six hundred sixty-six thousand, one hundred thirteen".